#include <stdio.h>
#include <string.h>
int strlen2(char * s)
{
	int len = 0;
	while ((*s) != '\0')
	{ len ++; s++; }
	return len;
}
int main(int argc, char * argv[])
{
	char * str1 = "Good";
	char str2[] = "Learning C Programming";
	printf("strlen2(%s) = %d\n", str1, strlen2(str1));
	printf("strlen2(%s) = %d\n", str2, strlen2(str2));
	return 0;
}
